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氨基化碳纳米管被引入己内酯单体微波辅助开环聚合体系,一步制备出碳纳米管纳米复合聚己内酯材料.其中,碳纳米管表面的氨基引发己内酯单体聚合在碳纳米管表面形成聚己内酯接枝链.氨基化碳纳米管的引入明显提高了聚己内酯材料的强度和模量,甚至在低含量(<2%)时断裂伸长率也同时得到提高.利用扫描电镜、X射线衍射、示差扫描量热分析和动态力学分析揭示了纳米复合材料的断裂形貌、结晶情况和热性质,进而探讨了氨基化碳纳米管对提高力学性能的关键作用.
Aminated carbon nanotubes were introduced into the caprolactone monomer microwave-assisted ring-opening polymerization system, one-step preparation of carbon nanotubes nanocomposite polycaprolactone material in which the surface of the carbon nanotubes initiated caprolactone monomer polymerization in the carbon The formation of polycaprolactone graft chains on the surface of nanotubes.The introduction of aminated carbon nanotubes significantly increased the strength and modulus of the polycaprolactone material, and the elongation at break was also obtained at low levels (<2%) The fracture morphology, crystallization and thermal properties of nanocomposites were revealed by scanning electron microscopy, X-ray diffraction, differential scanning calorimetry and dynamic mechanical analysis, and the key role of aminated carbon nanotubes in improving mechanical properties was also discussed .